\documentclass[11pt, a4paper, oneside, onecolumn]{IEEEtran}

\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{blindtext}
\usepackage{multicol}


\begin{document}
\input{Sections/titel}

\maketitle

\input{Sections/abstract}

\IEEEdisplaynotcompsoctitleabstractindextext
\IEEEpeerreviewmaketitle

\begin{multicols}{2}

\input{Sections/introduction}
\input{Sections/motivation}
\input{Sections/related_works}
\input{Sections/simulation_setup}
\input{Sections/results}
\input{Drafts/draft_test_conditions}
\input{Drafts/draft_notes}

\end{multicols}
\end{document}